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. 1981 Sep;3(1):89–116.

Table 8. Average Number of Reimbursed Services Per Aged Enrollee Under Medicare, by Specialty, U.S., 1975 and 1977.

Specialty Average Number of Reimbursed Services Per Enrollee

1975 1977
 All Specialties 10.78 10.83
General Practice (GP) 2.78 2.23
Family Practice (FP) .26 .59
Internal Medicine (IM) 2.80 2.93
Cardiovascular Disease (CD) .26 .27
Dermatology (DER) .13 .14
General Surgery (GS) .62 .58
Oto/Laryn/Rhin (OLR) .10 .10
Ophthalmology (OPH) .27 .27
Orthopedic Surgery (ORS) .23 .22
Urology (U) .27 .26
Anesthesiology (AN) NA NA
Pathology (P) .26 .31
Radiology (R) .58 .64
Chiropractic (CH) .13 .14
Podiatry (POD) .19 .21
Multi-Specialty Group (M) .59 .54